Cita APA (7th ed.)
COMBS, W. B. Milk and milk products.
Cita Chicago (17th ed.)
COMBS, Willes Barnes. Milk and Milk Products.
Cita MLA (9th ed.)
COMBS, Willes Barnes. Milk and Milk Products.
Atenció: Aquestes cites poden no estar 100% correctes.